The reason for the alleged attack is interesting: River Viiperi reportedly was mad because the 31-year-old socialite was making out with another woman.

According to TMZ.com, the boyfriend of the “other woman” filed a police report claiming 21-year-old Viiperi punched him in the face after Paris made out with his girlfriend at the XS nightclub at the Encore hotel. The alleged victim says he required medical attention for injuries he suffered.

Viiperi was arrested for misdemeanor battery and was subsequently released.